Function variance_risk_premium
pub fn variance_risk_premium(
implied_vol: f64,
realized_vol: f64,
tenor: SurfaceTenor,
method: RvMethod,
) -> Result<VrpRead, FerroRiskError>pub fn variance_risk_premium(
implied_vol: f64,
realized_vol: f64,
tenor: SurfaceTenor,
method: RvMethod,
) -> Result<VrpRead, FerroRiskError>